Eight years ago, the ratio of the ages of micky and Donald was 6:5, 12years hence, the ratio of their ages will be 11:10. What is Donald age at present?
(A) 28 Years
(B) 30 Years
(C) 34 Years
(D) 36 Years
Correct Option is: A Let 8 years ago the age of Micky and Donald be 6x and 5x resp.
then,
((6x+8)+12) / ((5x+8)+12) = 11/10
10(6x+20) = 11(5x+20)
5x = 20 => x = 4
So Donald age is (5x+8) = 28